My New Audio Nirvana Drivers - Page 95 - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th September 2012, 11:00 AM   #941
tsiros is offline tsiros  Greece
diyAudio Member
 
tsiros's Avatar
 
Join Date: Jun 2012
Location: Patra, Greece
Send a message via MSN to tsiros Send a message via Skype™ to tsiros
sorry, my mistake

Last edited by tsiros; 15th September 2012 at 11:03 AM.
  Reply With Quote
Old 15th September 2012, 11:03 AM   #942
Banned
 
Join Date: Nov 2006
That is interesting
What Spl are you at?

How are you measuring it?

Do you have other speakers you can compare it to?
  Reply With Quote
Old 15th September 2012, 11:25 AM   #943
Banned
 
Join Date: Nov 2006
What amps are you currently using?
  Reply With Quote
Old 26th September 2012, 06:22 AM   #944
diyAudio Member
 
oon_the_kid's Avatar
 
Join Date: May 2008
Location: Singapore
Hi Melon Head,

Been toying around an OB project based on your recommendation for the AN-15 cast frame. Looking fr a matching 15" woofer to go with it. I suspect the AN15 xmax of 1mm might not be enough. Besides, I think if the AN-15 is relieved of heavy bass work it might sound even better...

Any suggestions? Did you try your AN15 with any woofers yet?

Was looking at this one

Celestion 15" Professional Woofer 8 Ohm 299-418

Seems to have a pretty good flat frequency response down to 30Hz.

Oon
  Reply With Quote
Old 26th September 2012, 03:14 PM   #945
Octavia is offline Octavia  United States
diyAudio Member
 
Join Date: Mar 2008
+1 on the support woofer idea Oon. The Celestion looks good but another alternative might be the MCM cast frame 55-2963 it has similar efficiency, lower Fs, higher Xmax, and lower price. However it has higher Vas of 10.1 cubic ft. rather than the 6.18 cubic ft. of the Celestion, but does that really matter in Open Baffle or Slot Loaded?
  Reply With Quote
Old 26th September 2012, 04:53 PM   #946
diyAudio Member
 
oon_the_kid's Avatar
 
Join Date: May 2008
Location: Singapore
Looks interesting. Thanks for introducing me to MCM. However will more likely stick with the celestion. The idea that your speaker has bullet proof material in it sounds kinda cool.

On a different note, quite often the Fs goes down because the cone is heavier, making it closer to a sub rather than a woofer. The Mms is not mentioned so it is purely guess work...

oon
  Reply With Quote
Old 26th September 2012, 04:59 PM   #947
Bigun is online now Bigun  Canada
diyAudio Member
 
Bigun's Avatar
 
Join Date: Jan 2009
Blog Entries: 2
I think you'd be surprised by how much bass 1mm of an AN15 products. The issues is more likely the design of the baffle. If you go with a tall slim baffle then a woofer near the floor is likely a must, but if you use a wider baffle, angled back with AN15 mounted lower down then it may be just fine by it'self and perhaps worth a try ? Look at this: OBL11
__________________
"The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.
  Reply With Quote
Old 27th September 2012, 06:32 AM   #948
diyAudio Member
 
oon_the_kid's Avatar
 
Join Date: May 2008
Location: Singapore
One thing which is not obvious by the T-S parameters is how the thing will actually sound.

The MCM is made out of treated paper cone, the celestion is a paper/kevlar hybrid which would probably stiffen the cone.

A stiff cone will probably produce a punchier bass.

The Art of Speaker Design, Part II

scroll below and look under rigid cone drivers.

Would have liked a pure kevlar or carbon fibre, but don't think anybody is selling this at my price range...

Oon
  Reply With Quote
Old 27th September 2012, 06:54 AM   #949
diyAudio Member
 
oon_the_kid's Avatar
 
Join Date: May 2008
Location: Singapore
Quote:
Originally Posted by Bigun View Post
I think you'd be surprised by how much bass 1mm of an AN15 products. The issues is more likely the design of the baffle. If you go with a tall slim baffle then a woofer near the floor is likely a must, but if you use a wider baffle, angled back with AN15 mounted lower down then it may be just fine by it'self and perhaps worth a try ? Look at this: OBL11
Well very likely it will be tall slim baffle, which is why I am getting a woofer... Don't think the AN will sound nice mounted lower down, will sound as if the music is from the floor...

Oon
  Reply With Quote
Old 27th September 2012, 11:44 AM   #950
Octavia is offline Octavia  United States
diyAudio Member
 
Join Date: Mar 2008
Thanks for the link to Lynn Olson's comments, it made for a good read and the man has a wealth of knowledge. You might very well be right about the paper kevlar composite being superior, although i do note that the MCM cones have concentric rings which I would think would help produce a more rigid structure. Whether or not that also helps reduce cone resonances I don't know. Lynn's comments also remind me of the whole Enabl treatment process which seems to be an effort to address many of the things he is talking about.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Audio Nirvana Super 8 Drivers for Sale cascadeguy Swap Meet 12 1st October 2012 03:08 PM
Audio Nirvana drivers MagnumOpus Full Range 54 7th May 2011 04:17 AM
new project based on audio nirvana 12in drivers Jamh Full Range 89 1st August 2008 10:21 PM
Audio Nirvana Drivers drwho Full Range 15 20th December 2007 05:33 PM


New To Site? Need Help?

All times are GMT. The time now is 07:04 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2